This research proposes a simplified approach to the modelling of quadruple tank system via the use of bond graph technique. The novelty of this approach is that quadruple tank system equations are easier to obtain. In addition, the process of obtaining the system equations is less prone to error because of the use of the pictorial advantage of bond... Continue Reading
The production and characterization of recycled LDPE/Periwinkle (TurritellaCommunis) shell particulate composite was carried out with a view to addressing part of environmental pollution problem. Periwinkle shells were conditioned with 5 wt% NaOH for a period of 2 hrs, after which the shells at three different particle sizes, 106?m, 75?m and 53?m w... Continue Reading
The development and characterization of Al-3.7%Cu-1.4%Mg/Periwinkle shell ash particulate composites using periwinkle ash as reinforcement has been carried out. The periwinkle ash was used in the production of MMCs ranging from 5 to 30% at an interval of 5% addition, using double stir casting method. The periwinkle shells were characterized using X... Continue Reading
Fiber-reinforced polymer composites have played a dominant role for a long time in a variety of applications for their high specific strength and modulus. The fiber which serves as a reinforcement in reinforced plastics may be synthetic or natural. This research focuses on natural plant and animal fibres (palm kernel, locust bean husk, goat fur and... Continue Reading
This work was aimed at providing the most appropriate Nigerian Empirical-Mechanistic Flexible Pavement Analysis and Design method (NEMPAD) by incorporating Reliability, using First order reliability method (FORM), considering all the input variabilities, uncertainties, and seasonal variations, with the aid of Matlab to express the algorithms. A fra... Continue Reading
The aim of this study is to investigate why the implementation of Unity and Efficiency in Production(UEP)is not yielding the expected results in PAN. The overall operations, production and sales are still on the low trend. This survey examined how the adaptation of UEP tools and the level of functions integration relate to the overall implementatio... Continue Reading
Estimation of rainfall for a desired return period is one of the pre-requisites for any design purpose at a particular site, which can be achieved by probabilistic approach. This study is aimed at using the statistical parameters of long-term observed rainfall data to generate monthly rainfall depth and estimate rainfall values at different return ... Continue Reading
This work provides results for stochastic safetyevaluation of Nigerian timbers for bridge decks in accordance to American Association of State Transportation and Highway Officials (AASHTO) Load Resistance Factored Design (LRFD) design specifications.A timber bridge is modeled in accordance to AASHTO LRFD, 2010, to represent real life experiment in ... Continue Reading
The black cotton soil (BCS) used in the study was classified as A-7-6(22) soil group of the AASHTO soil classification system and CH group in the Unified Soil Classification System (USCS). The effect of iron ore tailing (IOT) on ordinary Portland cement (OPC) modified soil was studied with respect to specific gravity, particle size distribution, At... Continue Reading
This study determined the corrosive effect of seawater on as-received and double thermally-aged Al-Si-Mg alloy. It also determined the functional groups present in guava leaf and neem seed extracts and their inhibitive effect on the corrosion of Al-Si-Mg alloy in seawater. This was with a view to enhancing their performance in the aggressive seawat... Continue Reading
The challenge of optimal resource allocation to subscribers ofmobile Worldwide Interoperability for Microwave Access (WiMAX) has not been fully overcome by researchers. This research work developed an optimal scheduling algorithm for WiMAX resource allocation based on an improved Particle Swarm Optimization (PSO) technique. In this work, an improve... Continue Reading
The research was conducted to develop adsorbent for the removal of crude oil from contaminated water. Chitosan, rice husk silica ash were successfully developed from prawn and raw rice husk waste respectively and their composite also produced. Chitosan was produced by demineralization, deproteinization and deacetylation of prawn while rice husk sil... Continue Reading
The performance of the oils selected in this work was tested for considering Viscosity, Viscosity Index, Density, Flash Point, Pour Point, and Carbon Residue. The most important of all the properties which makes the oil protect against wear is viscosity that helps to reduce friction between moving parts in the engine. The Viscosities of the oils; O... Continue Reading
Biomass gasification is a thermochemical process that converts biomass to a combination of gases known as syngas comprising mainly of CO, H2and CH4 as a result of partial combustion with a gasifying agent. It is considered to be a promising clean energy option for reduction of greenhouse gas emissions and a way of utilizing agricultural wastes like... Continue Reading
Photocatalysis has continued to attract increasing attention due to its numerous applications in the energy and environmental fields. Present work was aimed at the development of ZnFe2O4 and α -Al2O3 supported ZnFe2O4 visible �“ light responsive photocatalysts for the treatment of textile effluent. ZnFe2O4 and α -Al2O3 supported ZnF... Continue Reading